CN202050089U - Magnetic suction plug socket assembly - Google Patents

Abstract

The utility model relates to a magnetic suction plug socket assembly, including a plug body and an electrode column of the plug terminal, a socket body of the socket terminal, electrode holes, and electrical contacts arranged in the electrode holes. The magnetic suction plug socket assembly is characterized in that the side of the contact surface between the plug body and the socket body is provided with a horse-shoe permanent magnet, two ends of the magnet are corresponding to two magnetic poles of the permanent magnet at the plug end, the two magnetic poles of the permanent magnet are close to the contact surface, the electromagnet coil is powered by the control circuit, the input end of the control circuit is connected to the two electrical contacts, the control circuit is provided with a trigger switch, and the trigger switch is convexly provided at the surface of the socket body. The utility model is characterized in that the conception is ingenious, the structure is unique, the usage is safe, and the operation is convenient. Based on the principle that two like magnetic poles are repulsive, in the utility model the protection function is added in the socket that the plug will be sprung out automatically in conditions of electric leakage, over-current, and short circuit.

Description

A kind of magnetic closes the plugs and sockets combination

Technical field:

The utility model belongs to electric field, and particularly a kind of magnetic closes the plugs and sockets combination of structure, and it ejects the protection plugs and sockets combination of plug automatically widenable to having electric leakage, overcurrent, short circuit.

Background technology:

The existing plugs and sockets combination of generally using is mechanical structure, and the mat elastic force clamps, and guarantees good electrical conductivity.Plug has two to " Sangen " tablet shape or columnar electrode, and socket is provided with the electrode reed of respective amount, and electrode reed has certain elastic force generally by the metal sheet moulding, can be out of shape to be clamped in outside the electrode after inserting electrode.The electrical equipment use has certain contact resistance between plugs and sockets, heating causes the elastic force of electrode reed to descend or lost efficacy, and can not clamp plug electrode, is easy to generate defectives such as loose contact or generation spark.How to improve existing plugs and sockets structure, maintain the plugs and sockets combination of excellent electric contact performance, promptly become the object of the utility model research.

Summary of the invention:

The purpose of this utility model is a kind of permanent magnet and electromagnet structure of being respectively equipped with on plug and socket of design, both adhesives mutually, and the magnetic that can produce mutual repulsive force again closes the plugs and sockets combination; Its secondary objective promptly is to utilize plugs and sockets can produce the characteristics of mutual repulsive force, has electric leakage, overcurrent to eject the plugs and sockets combination of plug automatically in the socket end design.

Technical solutions of the utility model are achieved in that a kind of magnetic closes the plugs and sockets combination, the header body and the electrode column that comprise plug end, the jack body of socket end, electrode hole and be installed in live contact in the electrode hole, it is characterized in that header body and jack body contact-making surface one side are provided with shape of a hoof permanent magnet, two magnetic poles of this permanent magnet closely lean against on the described contact-making surface; The corresponding horseshoe electromagnet that is provided with of jack body with header body contact-making surface one side, two magnetic poles of the two ends corresponding plug end permanent magnet of electromagnet, this electromagnet coil is powered by control circuit, the control circuit input is received on two live contacts, control circuit is provided with a trigger switch, and described trigger switch is convexly equipped with on the jack body surface.The trigger switch action, it is electric that electromagnet coil is got, and electromagnet produces the polarity identical with permanent magnet, produces to repel, and can automatically spring open plug.

Described live contact is a resilient contact, and resilient contact is movably set on the default pedestal of jack body, is provided with spring between resilient contact and pedestal.Guarantee that resilient contact can remain cambered outwards trend, so that good electrical contact is arranged with the plug electrode post that inserts.

And the control circuit of described electromagnet coil has following two kinds of forms according to difference in functionality:

One: described control circuit is a rectifier bridge, and the input of rectifier bridge is electrically connected with two live contacts behind trigger switch.This rectifier bridge can be a diode or a bridge rectifier, makes electromagnet produce unidirectional magnetic pole and gets final product.

Its two: described control circuit comprises rectifier bridge, unidirectional controllable silicon S CR, the electric leakage instrument transformer T1 that diode D1-D4 constitutes and crosses current transformer T2; Diode D1-D4 rectifier bridge input is received on two live contacts, and output meets electromagnet coil T3 through unidirectional controllable silicon S CR; Electric leakage instrument transformer T1 and cross the trigger electrode that logic sum gate that current transformer T2 output forms through diode D6 and diode D8 is respectively being controlled unidirectional controllable silicon S CR; On two live contacts and be connected toresistance R 5 and trigger switch loop.This control circuit also has electric leakage and overcurrent ejects the function of plug automatically.

The utility model is skillfully constructed, structure uniqueness, safe in utilization, convenience operation.During use, only need plug is aimed at and close socket, both just can inhale energising automatically, securely mutually.Plug, the socket that magnetic plug, socket have changed existing cutter formula structure in use exists reed to lose efficacy, and causes intermediate plate can't clip and presss from both sides not tight situation, also do not have the plug and socket of cutter formula structure because used year head length the into situation of spark arranged.In addition, the utility model has also solved because of magnetic attraction is big, the problem of separation difficulty, and the principle that promptly adopts the magnetic pole same sex to repel each other when needs pull the plug out of the socket, is pressed trigger switch, can eject plug automatically; And during the adhesive of whole plug socket, horseshoe electromagnet does not need energising, circuit to belong to the Passive Shape Control design; Moreover based on this like pole principle of repelling each other, the present invention has also increased the defencive function that plug is ejected in electric leakage, overcurrent, short circuit automatically in socket.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 plug, socket released state schematic diagram

Fig. 2 plug, socket attracting state schematic diagram

Fig. 3 diode rectification control circuit

The control circuit figure of Fig. 4 band defencive function

Wherein

1-header body 11-electrode column 2-jack body

21-electrode hole 22-live contact 23-pedestal

24-spring 3-permanent magnet 4-electromagnet

41-electromagnet coil 5-trigger switch

Embodiment:

See figures.1.and.2, magnetic closes the plugs and sockets combination, comprises theheader body 1 and theelectrode column 11 of plug end; Contact-making surface one side whenheader body 1 plugs together withjack body 2 is provided with shape of a hoofpermanent magnet 3, and two magnetic poles of thispermanent magnet 3 closely lean against on the described contact-making surface; Thejack body 2 of socket end,electrode hole 21 and be installed inlive contact 22 in the electrode hole; Contact-making surface one side whenjack body 2 plugs together withheader body 1, correspondence is provided with ahorseshoe electromagnet 4, two magnetic poles of the two ends corresponding plug endpermanent magnet 3 ofelectromagnet 4, thiselectromagnet coil 41 is powered by control circuit, the unidirectional power supply of saying so exactly, the magnetic polarity that makeselectromagnet 4 produce is identical with the magnetic polarity ofpermanent magnet 3, produces repulsive force, can force plug to eject; Andelectromagnet coil 41 is in the situation of not switching on, and itselectromagnet 4 can be inhaled mutually withpermanent magnet 3, guarantees the contact performance of plug and socket; For electrically contacting of thelive contact 22 of theelectrode column 11 that further guarantees plug end and socket end, describedlive contact 22 is a resilient contact, this resilient contact is movably set on thedefault pedestal 23 ofjack body 2,23 of resilient contact and pedestals are provided withspring 24, makelive contact 22 remain the trend of outside protrusion, meet withelectrode column 11 closely to contact, as Fig. 2 state.Describedpedestal 23 also can be the binding post that connects outside line.

Control circuit has following two kinds of structures:

As Fig. 3, diode rectification type control circuit, control circuit are the unidirectional rectifier bridge that a diode D1 forms, and the input of rectifier bridge is electrically connected with twolive contacts 22 behind trigger switch 5.Crawl trigger switch 5 makeselectromagnet coil 41 obtain unidirectional current, andelectromagnet 4 two ends produce and the identical magnetic pole ofpermanent magnet 3 polarity, and both produce repulsion, and plug is ejected.In order to improve the induced magnetism field time ofelectromagnet 4, atelectromagnet coil 41 two ends and be connected to a diode D9, play the afterflow effect.The bridge rectifier that rectifier bridge in this legend also can adopt four rectifier diodes to constitute replaces.T3 is anelectromagnet coil 41 among the figure.

As Fig. 4, the control circuit of band defencive function, its control circuit comprise rectifier bridge, unidirectional controllable silicon S CR, the electric leakage instrument transformer T1 that diode D1-D4 constitutes and cross current transformer T2; Diode D1-D4 rectifier bridge input is received on twolive contacts 22, output meets electromagnet coil T3 through unidirectional controllable silicon S CR, electric leakage instrument transformer T1 and cross the trigger electrode that logic sum gate that current transformer T2 output forms through diode D6 and diode D8 is respectively being controlled unidirectional controllable silicon S CR; On twolive contacts 22 and be connected toresistance R 5 andtrigger switch 5 loops.The effect of thistrigger switch 5 has two, the self-checking function of first detection of electrical leakage, and it two is as ejecting the plug control signal.T3 is anelectromagnet coil 41 among the figure, equally at the two ends of electromagnet coil T3 and the diode D9 of an afterflow effect arranged.

Describedtrigger switch 5 is convexly equipped with onjack body 2 surfaces, operates with convenient the use.The combination of plug and socket of the present utility model is to have directivity, its be well suited for the band zero line three plug-and-sockets on use, certainly also be not precluded within on two plug-and-sockets that are provided with the direction restriction and use.In addition, the shape of a hoof permanent magnet that the utility model relates to cooperates with horseshoe electromagnet, and structure is the simplest and reasonable, adopts two blocks of block permanent magnets but do not get rid of shape of a hoof permanent magnet, the structure of polarity opposed on plug, this structure just are considered as the technical scheme that is equal to.

Claims (4)

1. a magnetic closes the plugs and sockets combination, the header body and the electrode column that comprise plug end, the jack body of socket end, electrode hole and be installed in live contact in the electrode hole, it is characterized in that header body and jack body contact-making surface one side are provided with shape of a hoof permanent magnet, two magnetic poles of this permanent magnet closely lean against on the described contact-making surface; The corresponding horseshoe electromagnet that is provided with of jack body with header body contact-making surface one side, two magnetic poles of the two ends corresponding plug end permanent magnet of electromagnet, this electromagnet coil is powered by control circuit, the control circuit input is received on two live contacts, control circuit is provided with a trigger switch, and described trigger switch is convexly equipped with on the jack body surface.

2. a kind of magnetic according to claim 1 closes the plugs and sockets combination, it is characterized in that live contact is a resilient contact, and resilient contact is movably set on the default pedestal of jack body, is provided with spring between resilient contact and pedestal.

3. a kind of magnetic according to claim 1 closes the plugs and sockets combination, it is characterized in that control circuit is a rectifier bridge, and the input of rectifier bridge is electrically connected with two live contacts behind trigger switch.

4. a kind of magnetic according to claim 1 closes the plugs and sockets combination, it is characterized in that control circuit comprises rectifier bridge, unidirectional controllable silicon S CR, the electric leakage instrument transformer T1 of diode D1-D4 formation and crosses current transformer T2; Diode D1-D4 rectifier bridge input is received on two live contacts, and output meets electromagnet coil T3 through unidirectional controllable silicon S CR; Electric leakage instrument transformer T1 and cross the trigger electrode that logic sum gate that current transformer T2 output forms through diode D6 and diode D8 is respectively being controlled unidirectional controllable silicon S CR; On two live contacts and be connected to resistance R 5 and trigger switch loop.

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